The Project Portfolio of 2020

Page 1

ARCHITECTURE

PORTFOLIO EM IRHAN VEY SELOGLU | 2020


O C 01

N

THE BALLOON From a Farm House to an Urban Tower

02 T H E L O O P

A Bicycle Road in Front of Your Road

03

J-HUB An Emerging Place for Youth

04 L A N D S C R I P T S

Preserving Old Memories of a Slum Village

05 06

THE WHIRLPOOL Merging the Stadium with the City

SUNDIAL EXPLORER A New Field for Architecture: Designing in Space

07 M O M A D O M E S

An Isolated Research Lab, Simulation & Home

T

N E

S T

2

9

15

22

30

35

39


01

THE BALLOON From a Farm House to an Urban Tower

Despite the fact, that the designed building has strong sharp edges, the project is a case study to analyze the relation between the structure and space, in which architectural space is manifested as an encapsulated and dilatable element between the structural skeleton, like a balloon.

2


THE AIM OF THE PROJECT The Project is mainly a case study, which manifests the architectural space as an encapsulated and dilatable element between structural frames of the building. The purpose of the project was to create an architectural concept by observing an iconic building typology, which was on this particular project a farmer house typology from Austrian regions: The “Vierkanthof�. The building is designed as an exhibition tower.

3


THE CONCEPT The inspiration for the project comes from the gigantic yard of an austrian farmhouse, which was preselected for observation and study. The central dominance of the yard and the space under the roof as a transition zone between outside and inner yard created the main idea. Through a basic transformation of wall structure, it’s aimed to create a more fluid transition zone.

CUT The outer walls are cut through diagonally, in order to create 2 different triangular parts, which can behave and move seperately from each other.

R O TAT E The upper part of cut wall is rotated around its edge. Through the rotation of 4 triangular wall, a yard is created in the middle of the abstract structure. The triangular walls are streched individually to break down the systematic continuety and to create more complex spaces.

4


D1

D2

5

SECTIONAL VIEW A-A


1

6 4

7 8 9

3

10

5

2

3

2 1

12

4

11 12

13 14 15

5 6

13

16

7

14

17 18

15 16

8

17

9

19

10

20

11

D1

D2

D E TA I L 1

D E TA I L 2

1. Aussteifung & Bekleidung | Stahlblech, feuerverzinkt | 3 mm

10. Verbindungsstück | Stahl Winkel Profil

1. Isolierglas aus 2 ESG Scheiben | 12 mm

11. WD & Schutz | Schaumglas | 60 mm

2. WD | Hartdämmung, XPS Platte | 75 mm

11. Entwässerungsrinne

2. Einscheibeglas | 6 mm

12. Abdichtung | E-KV 5 Bitumenbahn | 5 mm

3. WD | Hartdämmung, XPS Platte | 75 mm

12. WD | Weichdämmung, Mineralwolle | 100 mm

3. Pfosten-Riegel Konstruktion

13. Gewindestange M5, ø 5 mm

4. WD | Hartdämmung, XPS Platte | 75 mm

13. Hauptträger | Stahl I-Profil, HEB 240

4. WD | Hartdämmung, XPS Platte | 50 mm

14. Verbindungsstück | Stahl Winkel Profil

5. WD & Schutz | Schaumglas | 60 mm

14. Gewindestange M5, ø 5 mm

5. WD | PE-Schaum

15. Entwässerungsrinne

6. Abdichtung | E-KV 5 Bitumenbahn | 5 mm

15. WD | PE-Schaum

6. Aussteifung & Bekleidung | Stahlblech, feuerverzinkt | 3 mm

16. WD | Weichdämmung, Mineralwolle | 100 mm

7. Bekleidung | Stahlblech, feuerverzinkt | 3 mm

16. Pfosten-Riegel Konstruktion

7. Hauptträger | Stahl I-Profil, HEB 240

17. Verbindungsstück | Stahl Winkel Profil

8. Blechträger | Holzlatten | A = 40x60 mm

17. Isolierglas aus 3 ESG Scheiben | 24 mm

8. WD | Hartdämmung, XPS Platte | 75 mm

18. Blechträger | Stahl U-Profil, Stabilisiert durch Gewinde

9. Blechträger | Stahl U-Profil, Stabilisiert durch Gewinde

9. WD | Hartdämmung, XPS Platte | 75 mm

19. Blechträger | Holzlatten | A = 40x60 mm

10. Verbindungsstück | Stahl Winkel Profil

10. WD | Hartdämmung, XPS Platte | 75 mm

20. Bekleidung | Stahlblech, feuerverzinkt | 3 mm

6


23.8

15.6

4.6

7.8

0.2

0.4

3.6

1.7

3.8

2.0

7.8

0.2 0.7

0.9

0.1

0.2

°

1.6

37

21° 3.6

51°

20

19 18

4.4

16

4.4

17

20

15

7 6 5

3

4

3

5

6

7

8

29 9

10

11

12

13

2.1

1.9

2

A-A 17 /

3.7

4

2.2

7.4

8

1

2.0

9

14 ST

BALKON

7.6

90 210

6,4 m² Polierte Beton

10

125 m² Polierte Beton

+18,0

9

11

/2

12

17

13

FOK +18,0 ROK +17,7

ST

14

46°

1.5

°

AUSSTELLUNGSBEREICH / LIGHT ROOM

83

14

0.3

14°

28° 1.5

0.9

0.1

2.0

0.1

2.0

0.1

1.5

2.0

0.1

7.6

1.9 20.1

2.7

0.5

2.2 2.2

23.8

A-A

3. FLOOR The plan cut is made 2,30 m above the floor surface, in order to show the space, which is accesable for visitors.

7


24.00 4. OG

B-B

B-B

B-B

B-B

2. Floor

Ground Floor

Platform

B-B

B-B

20.60 3. OG Podest

18.00 3. OG

B-B

B-B

3. Floor

1. Floor

14.50 2. OG Podest B-B

B-B

12.00 2. OG

8.55 1. OG Podest

B-B

B-B

3. Floor

1. Floor 6.00 1. OG

0 EG

B-B

B-B

B-B

B-B

2. Floor

SECTION B-B

Platform

Platform

4. Floor The plan cut is made 2,00 m above the floor surface, in order to show the space, which is accesable for visitors. 8


9


02

THE LOOP A Bicycle Road Front of Your Door

The focus on this particular project is to create a concept, in which urban streets are extended into a high-storey residential building. The extended roads are designed as bicycle roads and at front of every flat door a bicycle garage is located. The aim is to create a more fluid transition for residents into their apartments from urban city, which manifests the building as an urban landscape and an extension of the city.

10


B I C Y C L E G A R A G E S & O N E WAY S T R E E T The aim of the project was to select a specific sport type and integrate it in an architectural concept. Bicycle riding, not just as a sport type, but also as one of a transportation tool in traffic, is selected for this task. On the east facade, wooden boxes serve as little bicycle garages for the flats and create a more dynamic look on the facade. On the platforms between spiral ramps, further parking space is added for north and south wing residents. On the interception points of the building wings, spiral ramps are located. The ramp on the north is used by cyclists to ride upwards and the ramp on the south, to ride downwards, which declare the access gallery between two ramps as an one-way bike road.

11


S PA C E D I S T R I B U T I O N The building possesses 3 seperate wings. The north wing is designed as a dormitory for students, which has instead of an access gallery, a central corridor to make access from one apartment to another much easier and to ensure a better security. At the top of the northern spiral ramp, a small basketball court is located for students. The west wing possesses one-person flats. As the street beside the south wing is quieter, family apartments are located on this particular wing. The apartments on the 3. floor are designed as duplex flats, as reaching the 4. floor through riding a bicycle would be very tiring.

12


A PA R T M E N T T Y P E S The building consists mainly 4 types of flat, to raise diversity in the whole residential complex. These are dormitory rooms, one-person flats, family apartments and on the top floor, duplex apartments for families.

Family Apartment Type III, on the South Wing

13


Studierraum

Type I

Type III

Type IV

2. FLOOR 14


15


03

An Emerging Place for Youth

J-Hub is part of a design studio, which aims to define the new emerging typology of “Public House�, in which its functions serve public needs and create activities, which can be exercised communally. J-Hub as a project focuses mainly on the needs of young people and creates spaces, which can fulfill their needs as a comunity.

16


L O C AT I O N As the location of the project, urban wilderness at MargaretengĂźrtel is selected,as it provides an area , which sits beside the entrance of the subway station of U4 MargaretengĂźrtel and various tram stations. The area contains a lot of potential for creating spaces, that can fulfill the functions of outdoor and sport activities. At the beginning of the project, its highly considered to maintain and preserve the outlines and axis of the existing paths and to put building blocks accordingly.

17

SITE PLAN


BMX AREA

U-PLATZ | OPEN AIR KINO

1700 m 2

Audiance: 120 m 2 Square: 800 m 2

EVENT AREA Entrance: 90 m 2 WC: 70 m 2 Garderobe: 40 m 2 Technical Room: 15 m 2 Event Area: 450 m 2

MEDIATHEK Entrance: 30 WC: 30 Seminar Area: 30 Projector Area: 28 Youth Center: 121 Main Area | 1. & 2. Floor: 500

m2 m2 m2 m2 m2 m2

WORKSHOP AREAS Public Workshop: 74 m 2 Youth Workshop: 30 m 2 Sport Workshop: 30 m 2

3 BUILDING BLOCKS & BINDING AGENT In order to preserve the existing outlines and axis of the paths in the area, it’s decided to put building blocks on the location of green islands, whose outlines were drawn by the axis of the paths and which lay between these particular axis. For binding these 3 emerging and seperated building blocks, an underground space is dug out and an underground level is created. In this order, 3 building blocks act as public spaces with 3 different functions, which are event area, workshop area and mediathek. The underground level serves as a binding agent between these 3 areas and creates additional spaces as corresponding semi-public areas for stated functions. 18


AT R I U M The Underground level act as a binding agent between 3 emerging building blocks on the ground floor. Creating upper levels other than ground floor is avoided, in order to preserve the urban landscape of the area, which the underground level serves this purpose, in which additional space is created on lower levels. Atrium areas are carved out from the same green island elements, which also give shape to the 3 main building blocks. Atrium areas serve as potential light sources and provide extra privacy for semi-public workshop and mediathek areas on the underground level. 17 19


B-B

Bibliothek & Lernzentrum 220 m²

Workshop | Public 85 m²

GROUND FLOOR

20 S E C T18 ION A-A

ERZEUGT DURCH EINE AUTODESK-STUDENTENVERSION


Gummigranulatbelag 12 mm Gummigranulat lose 60 mm Kiesschüttung 40 mm Asphaltbelag 15 mm Abdichtung 9 mm | P-KV 5+4 Bitumenbahn Dampfdruckausgleichschicht Wärmedämmung 250 mm | Mineralwolle Dampfsperre Trennlage | PE-Folie Voranstrich Gefälleestrich 50 mm Dachkonstruktion 250 mm | Stahlbeton Hohlraum 600 mm Akustiche Deckung 19 mm | Kantholz Western Hemlock, lackiert

Unterspannter Stahlträger | IPE 160

Zementspachtel, Witterungsbeständig Bekleidung 20 mm | Zementfaserplatte Unterkonstruktion | Stahlrohr 50/50 mm

Betonplatten 900/900 mm Kiesschüttung 250 mm | Kies 16/32 Trennlage | PE-Folie Wärmedãmmung 250 mm | XPS Abdichtung 9 mm | P-KV 5+4 Bitumenbahn Trennlage | PE-Folie

Bekleidung 2 mm | Stahlblech, feuerverzinkt Unterkonstruktion | 120/80 mm 80/80 mm 80/80 mm

Stahlkonsole für Elementaufhängig

Bekleidung 2 mm | Stahlblech, feuerverzinkt Unterkonstruktion | 100/100 mm 50/50 mm 100/100 mm Sandwichpaneel mit WD 200 mm | XPS Dampfsperre Fachwerkträger mit WD | 200/100 mm

Pfosten-Riegl Konstruktion 2-Fach Isolierverglasung | Fest

Zementspachtel Bekleidung 20 mm | Zementfaserplatte Pfosten Konstruktion mit WD | Mineralwole

Bodenbelag 40 mm | Nagefluh sägerau Dünnbettmortel 20 mm Schwimmender Estrich 100 mm Trennlage | PE-Folie Trittschalldämmung 60 mm | Holzfaserplatten Wärmedämmung 220 mm | Mineralwolle Abdichtung 5 mm | P-KV 5 Bitumenbahn Bodenplatte 250 mm | Stahlbeton Trennlage | PE-Folie Rollierung 200 mm | Kies 16/32

21

Gummigranulatbelag 12 mm Gummigranulat lose 60 mm Kiesschüttung 40 mm Asphaltbelag 15 mm Abdichtung 9 mm | P-KV 5+4 Bitumenbahn Trapezblech | TP-20 Unterkonstruktion | Stahlrohr 50/50 mm

2-Fach Isolierverglasung | Falttür

FA C A D E S E C T I O N EVENT AREA


04

LANDSCRIPTS OF HOPE VILLAGE 상계동

In year 2017, the architect DI Seung H-Sang came to Vienna, with the desire to find an affordable solution for social housing with a higher density of residents, in order to create a similar approach in his homeland; Korea, Seoul. The project focuses on preserving the memories and function of life in a slum village in Seoul, while creating a newly developed area with a higher density of residents. The project “Landscripts” is displayed in Seoul Biennale on Architecture & Urbanism on 2017.

22


P R E S E R V I N G T H E WAY O F L I V I N G I N A S L U M V I L L A G E The main aim of the project was to maintain the way of living of the existing residents in the village, while creating systematic building blocks for higher density of new residents. The streets in the Hope Village is very narrow and serve as an extension and additional space for bad shaped houses. The communality and neighbour mentality are very strong between the existing residents, which lead to planning of high amount of public and semi-private spaces for designed settlement.

23


P U B L I C & S E M I - P R I VAT E A R E A S After analysing the dynamic functional system of the neighbourhood, the ground floor is divided in semi-private and public areas, according to the activities, which are performed by specific user type. Public areas are designed for common use of all residents, while semi-private areas are more for specific resident type.

24


C I R C U L AT I O N A R E A A S S E M I - P R I VAT E S PA C E The stairwells of new residential buildings are located right above the narrow streets, which bind two seperate buildings. The stairs lead from one balcony of one particular flat to the balcony of another flat, which declare all balconies as part of a bound system of semi-private space. 25


PAD

TYPOLOGIES

Family Apartment with retractable & changable wall System

44 m2

36 m2

Studio Apartment

26

60 m2


Ground Floor 0

5

5

Site 8 15

1. Floor

15 0

5

0

5

Site 8 15

GSEducationalVersion GSEducationalVersion

2. Floor 0

5

5

Site 8 15

3. Floor 15

Site 8 15

GSEducationalVersion

GSEducationalVersion

AXONOMETRIC SECTION Site 8

3. Floor 27

0

5

5

Site 8 15

Site Plan 15

0

5

Site 8 15

GSEducationalVersion


3

9

8

7

6

5

4

3

2 1

0

Ground Floor 15

5

15

Site 15

0

15

5

1. Floor 15

Site 15

0

5

2. Floor 15

Site 15

15

GSEducationalVersion

GSEducationalVersion

0

5

tionalVersion

EducationalVersion

2

1

9 STG 5 16 / 30

4

AXONOMETRIC SECTION Site 15

15

5

3. Floor 15

Site 15

0

5

4. Floor 15

Site 15

Site Plan

GSEducationalVersion

0

Site 15

GSEducationalVersion

GSEducationalVersion

28


29


05

WHIRLPOOL Merging the Stadium with the City

“Where does the city end and stadium begin?� is the question, which shapes the main concept of the project, by investigating the strict line between the urban life, that belongs to the city and spaces, which become active only during the event, that takes place in the stadium. The aim of the project is to eliminate this deep contrast between the urbanity of the city and the stadium spaces and to create an event stadium for 10.000 people.

30


T H E A X I S & C I R C U L AT I O N PAT H S

31

The event area, which contains the stage and the tribunes with its surrounding spaces are designed in a circular shape. 3 Building blocks are added beside the circular event area for additional space and they are bound to the event area in upper levels, through bridge shaped passages. The designed paths between the blocks and the event area serve as an extension of existing axis and a binding agent for these axis. The ramps, which opens up to the stated axis, lead to upper levels and create a secondary circulation, which simulates a spiral movement.


T H E WA L K I N G PAT H with the Integration of green areas along the path | Public Area

SHOPPING & COMMERCIAL AREAS Public Area

THE EVENT AREA & GALLERY Semi-public Area

T H E N E T W O R K PAT H the path, which binds all the different functions of space together 32


CONSTRUCTION & TRIBUNES In order to create a roof element on the event zone, 2 arc shaped truss elements are designed, which have the thicker columns as starting points and create a v-shape by further splitting away from each other, in which the furthest is at the peak point of the arcs. The Cable elements, that are streched between the arcs and the columns, which are located on the outer border of the event zone, serve as secondary support system. The Tribunes can be modified and adjusted for upcoming events. The front rows (first 10 rows) are retractable telescope tribunes, which can be packed and eliminated at will, in order to gain more space on stage level.

33


-0,50

-1,00

-1,50

+2,00

-2,50

-3,00

±0,00

±0,00

±0,00

+0,40

GROUND FLOOR 34


06

SUNDIAL EXPLORER A New Field for Architecture: Designing in Space

Designing the vehicles and structures, which are capable to endure extreme environments of space, is a new emerging field, that needs creative vision of architecture. The aim of this particular project was to create a conceptual work and a new vision for a possible moon village and to shape this concept by bringing it into a design process.

35


SCOUTS

WAT E R F R O M C O L D T R A P S

EXPLORATION ON LUNAR SURFACE

The water is obtained by the outpost on Malapert mountain will be transfered to the habitat every 28 days

- By being mobile, lunar surface can be mapped, specifically by measuring the thickness of crust and further features on specific areas with seismic measuring tools. - With a mobile habitat, the distances between research fields and laboratory can be minimized. - EVA missions can be much safer, as the pressurized habitat can stay in mission range.

WAT E R TA N K

C R E W (28 days Report)

- Water for crew: 1197 kg - Water for Electrolysis: 445 kg - % 80 recycling Potential: 1110 kg Water that tank must hold

- Oxygen Consumption: 210 kg - Water Consumption: 1197 kg - Nitrogen Need: 210 kg

CO2 Scrub Tank 530 kg

H2O Tank

NOMADS MOBILITY AS INFRASTRUCTURE

Grey Water

Instead of bringing resources from optimal locations to habitat. Habitat will use its mobility ability to get itself to resource gathering outposts and get resources, especially water. In later phases, it can transport goods from one outpost to another. Self-sufficiency of habitat will be ensured this way.

ELECTROLYSIS

+

-

performed by Solar Energy

O2

H2

SUNDIAL CONSTANT SUNLIGHT - By staying always on the bright side of the moon, the thermal tension on material is reduced, which extends the durability of the habitat. - Instead of heating, cooling: No need of heating system, cooling can perform by radiators. - Constant sunlight can be gathered by solar cells and constant energy can be produced. There is no need of space for energy storage.

MAIN CONCEPTS

RECYCLING

HYDROGEN FUEL CELLS FOR ROVERS

The grey hygiene water, urine, respiration steam from the crew and waste water from fuel cells of rovers are recycled. Recycling efficiency is %80.

The hydrogen and oxygen, which is produced by electrolysis will be delivered to rovers, to be used in fuel cells, which are more efficient than batteries. Fuel cells produce water as waste product, which can be used further.

LIFE SUPPORT SYSTEM 36


S O L A R PA N E L S - Min. 30 m2 of solar panels ensures that the habitat will have sufficient energy. - A 200 kWh power storage is present for 48 hour emergency or if the habitat will cross to the dark side. - The surface of panels can be configured and rotated in the direction of sun to get sunlight in 90o degrees.

R A D I AT O R S - Radiators, underneath the solar panels prevent solar panels to overheat and are also responsible for cooling in the habitat.

LIVING MODULE - Dimensions: 8,14 x 4,58 x 3,67 m - The hatch door has a big glass panel, in order to give the crew, the opportunity to observe lunar surface and space.

37

STRUCTURAL SKELETON - Skeleton works as the carrier and presentation of all infrustructural elements on the habitat, as it carries solar panels and responsible for mobility. - Skeleton is made of aliminium trusses, with a thickness of 40 cm (min. 28 cm)

SUSPENSIONS - Suspension system is inspired by Rocker Boogie suspension system of Curiosity Rover. The Rocker Boogie system is not directly copied, because with that kind of system the tension of load on skeleton would be very high, which might not be optimal. - Rotator engine (for steering) for wheels are located at the interception point of triangular legs and skeletal trusses.

ENGINE FORCE - The Habitat must be able to travel up to 15 km/h. A vehicle of 15 tons must have at least an engine with 1,75 horsepowers to ensure its mobilization. Emergency sitiuations in mind, every engine (8 seperate engines for every wheel) will have 1 horsepower (in total 8 horsepowers)


LIVING

HYGIENE

EVA

LAB

4

4

4

SECTION Radial

8

Soft Ceiling

Exchangable Seperator Lightning Foldable Screens Food Storage

Water Tank Life-Support System Racks

Cooking Equipment Folding Chair

Lightning Algae Bags Personal Item Storage Lightning

Personal Item Storage Lightning Aluminium Composite Panel Toiletries Storage

Projector Curtain

Lab Equipment Storage

Hydro Farm Experiment

Experiment Racks

Hygiene Products Storage

Folding Chair

Hydraulic Table

Urine Recovery

Exchangable Rack System

5

SECTION Living

SECTION Hygiene

5

SECTION Lab 38


07

MOMA DOMES An Isolated Research Lab, Simulation & Home

Moma Domes is a project, which is emerged in a design studio, in which an extraordinary location with extereme environment conditions is selected and a design is accordingly created.

39


M O V I L E C AV E As the location with an extreme environment condition, Movile Cave in Romania, near the coast of Black Sea, is selected, which has basically a toxic environment with the high concentration of H2S gas and is very hostile to surface life. Despite this fact, it serves a perfect environment for a type of bacteria, which can feed themselves with the process of Chemosynthesis and that way becomes the first link in a food chain of a very alien ecological system inside the cave. The Movile Cave with its toxic environment serves also as a perfect place to simulate Martian atmosphere.

40


4 DOMES For conducting research, it’s advised to build a lab with a very small space inside the underground cave. On the surface additional 4 domes are designed, in which one of them stands on the opening to the shaft, that leads inside the cave and which have 4 different main functions. The Domes are created for 3 researchers and 3 simulation participants.

41

LAB & RESEARCH AREA

S I M U L AT I O N A R E A

LIVING QUARTERS

The lab and the research area contain workspaces, laboratories, large amount of storage areas and additional dark, sealed laboratory tanks with a similar atmosphere as the underground cave.

The simulation area is located on the opening of the shaft, that leads to the cave. The Movile Cave is the perfect place to conduct simulations and give training for future astronauts, who will be sent to Mars. With the sealed habitat and space suits, the sample collecting can be made in the cave for researchers by the simulation participants, without contaminating the cave.

The living quarters are designed for 3 researchers, which stay at the research field permanently. For guest researchers, additional rooms are added. The area contain bedrooms, kitchen and leisure area.


CONSTRUCTION Because of the Movile Cave, which lays beneath the building site, a lightweight construction method must be selected. A type of geodesic dome, created by triangular geometry, similar to Buckminster Fuller’s, are selected for each dome construction, because of its strong geometrical shape, in order to minimize the construction weight.

P E R F O R AT E D S T E E L P L AT E S Perforated steel plates are designed onto the outer layers of triangular windows, in order to prevent sunlight partially entering the building and to enhance privacy for residents. On some triangular window areas the perforated plates are not used.

S I M U L AT I O N H A B I TAT

F O U N D AT I O N S Instead of creating a concrete foundation, the steal beams are rammed into the ground, in order to prevent contamination of the area and the cave.

The simulation habitat is located in the simulation dome and surrounded by the experimental farm area inside the dome, which is an essential part for sustainability of the foreseen Mars missions. The habitat is fully isolated materialwise and totally sustainable. It’s made by two inflatable modules, designed by the company “Bigelow”. The lift, which brings simulation participants to the cave is located on the first level of the habitat.

UNDERGROUND LAB

VERTICAL SHAFT Although the cave is located 20 meter beneath the ground, a vertical shaft was built by Romanian government 2 decades ago, for the purpose of search for natural gas. After the research promise of the area is discovered, the opening of the shaft is sealed, in order to prevent contamination. The dimension of the shaft is 2x1,5 meter. A small lift from the simulation habitat, along the shaft is designed.

The underground laboratory has a very small space and is located inside the cave. It is used mainly for some essential experiments, which can’t be performed in the tank laboratory at the research dome; as storage area for sample collecting and as emergency shelter for simulation participants.

42


43


42


Turn static files into dynamic content formats.

Create a flipbook
Issuu converts static files into: digital portfolios, online yearbooks, online catalogs, digital photo albums and more. Sign up and create your flipbook.